infusible

It is at the same time the most infusible of all the common minerals of rocks.

These artificial metals are both absolutely infusible and non-volatile.

It is infusible and insoluble.

They will be infusible and non-corrodable.

It is infusible and insoluble in water, and only slightly soluble in warm hydrochloric acid.

Why should it not, at a certain depth, attain an impassable limit, instead of rising to such a point as to fuse the most infusible metals?"

His notes include the use of powdered silicon mixed with lime or other very infusible non-conductors or semi- conductors.

It is heavy tin-white metal which is ductile and malleable, but very infusible, and characterized by its resistance to strong chemical reagents.

The Ancient Mariner was buried under a hundred feet of rapidly solidifying rock, but rock which could be fused away from its infusible walls when the time came.

Our cannon must be possessed of great tenacity, great hardness, be infusible by heat, indissoluble, and inoxidable by the corrosive action of acids."

The marvelous new tubes that ran its ray screen flashed instantly to a temperature inconceivable, and, so long as the elements embedded in the infusible relux remained the metals they were, those tubes could not fail.

Eight forms of electric lamps using infusible earthy oxides and brought to high incandescence in vacuo by high potential current of several thousand volts; same character as impingement of X-rays on object in bulb.

Shaped like a toothpick, needle-pointed fore and aft, with ultra-stubby wings and vanes, with flush-set rocket ports everywhere, built of a lustrous, silvery alloy of noble and almost infusible metals-such was the private speedboat of Triplanetary's head man.

He now turned to the use of almost infusible metals-- such as boron, ruthenium, chromium, etc.--as separators or tiny bridges between two carbon points, the current acting so as to bring these separators to a high degree of incandescence, at which point they would emit a brilliant light.

In that same letter, Goddard clearly describes the concept of the ablative heat shield, suggesting the landing apparatus be covered with "layers of a very infusible hard substance with layers of a poor heat conductor between" designed to erode in the same way as the surface of a meteor.

Lux and Relux, the two artificial metals, made of solidified light, far stronger than anything of molecular structure in nature, absolutely infusible, totally inert chemically, one a perfect conductor of light and of all radiation in space, the other a perfect reflector of all radiations-save molecular rays.